Propygolampis bronni water boatman or prehistoric Jurassic water strider bug, renamed, previously known as Chresmoda Obscura. The sought after fossil insect plate, becoming increasingly less frequently discovered as much of this plattenkalk fossil material is already in collections, coupled with the remaining working quarries being limited in fossil finds, subsequently these types of fine fossil insect plates are increasingly scarce. Lithographic limestones are not so much in demand as it once was, quarries are slowly becoming redundant, ending a productive life as far as fossil discovery is concerned. It is reasonable that the quarries of this region will cease altogether as the demand for limestone is mainly for domestic use, roof tiles and flag stones etc.
Highly preserved fossilised limestone plate of Phasmida insect from the Jurassic period, exhibiting preservation of the whole anatomy of the invertebrate clearly displayed central to the limestone plate, favourably positioned on original matrix (lithographic fossil limestone) plate. A rare specimen due to the fragility of the delicate exoskeleton, delicate tissues rarely survive the ravages of fossilisation and time in the fossil layer. Most specimens of this type do not survive in sedimentary environments and are not easily identified.
The Propygolampis resembles the modern day water striders, water bugs, pond skaters, water skippers, or jesus bugs. Scientist believe that these insects were aquatic, and are commonly known as, Water Bugs, the Propygolampis was previously named; Chresmoda obscura, which was re-discribed as short-horned grasshopper, hence Propygolampis Bronni. It would have used its long legs to skate across the water, this specimen is about the maximum size for a fully grown adult, displaying its beautiful delicate body, with all the legs fully extended outwards, showing good definition. The head is also very distinctive with the eye area maintaining great detail, complete and intact Insect fossilised impression on the limestone plate of the Jurassic layers.